Moth
Moths are winged insects in the order Lepidoptera, the same order as butterflies.
Moths are winged insects in the order Lepidoptera, with about 160,000 species worldwide. Most are nocturnal, though some are active by day.
What it is
Moths are a large group of insects in the order Lepidoptera, the same order as butterflies. They include roughly 160,000 known species globally. Most moths are nocturnal, but some are active during the day. Their larvae are called caterpillars.
Key details
Moths are often distinguished from butterflies by their feathery or threadlike antennae, stouter bodies, and more nocturnal habits. These are general patterns, not absolute rules. Moth caterpillars typically feed on plant material, while adult diets vary widely—some drink nectar, sap, or fruit juices, and others do not feed at all.
Why it matters
Most moths are harmless to people, but some species can be household or agricultural pests, such as clothes moths and pantry moths. In Canada, these pests are familiar to homeowners and gardeners. A few moth species may have defensive hairs that can cause minor irritation.
In short
- Moths and butterflies are both in the order Lepidoptera.
- Moths are usually nocturnal with feathery or threadlike antennae.
- Most moth larvae are caterpillars that feed on plants.
- Most moths are harmless, though some can be pests.
Moths are widespread across Canada and include both native species and household pests such as clothes moths and pantry moths, which are familiar to Canadian homeowners and gardeners.
Quick questions
What is a moth?
What is the difference between a moth and a butterfly?
Are moths dangerous?
Sources
- Encyclopaedia Britannica — https://www.britannica.com/animal/moth-insectSupports: Defines moths as Lepidoptera and notes species diversity and general feeding habits.
- Smithsonian Institution — https://www.si.edu/spotlight/buginfo/mothsSupports: Explains moth and butterfly differences, including antennae and Lepidoptera classification.
- Butterfly Conservation — https://butterfly-conservation.org/news-and-blog/everything-you-need-to-know-about-mothsSupports: Describes moth diets, life stages, and typical adult feeding.
- Xerces Society — https://www.xerces.org/blog/for-love-of-mothsSupports: Provides information on moth metamorphosis, life cycle, and adult lifespan patterns.
- WebMD — https://www.webmd.com/a-to-z-guides/household-pests-mothsSupports: Notes that most moths are harmless, some are pests, and adults generally do not bite or sting.